Reversing-gear for phonographs.



PATENTED AUG. 21, 1906.

A. W. COLE. REVERSING GEAR FOR PHONOGRAEHS.

APPLICATION FILED MAR. 31. 1905.

,4 TTORNEY UNITED STATES PATENT OFFICE.

ARTHUR W. COLE, OF WEST HOBOKEN, NEW JERSEY, ASSIGNOR OF ONE-HALF TO JACOB VALENSI, OF NEW YORK, N: Y.

REVERSlNG-GEAR FOR PHONOGRAPHS.

Specification of Letters Patent.

Patented Aug. 21, 1906.

Application filed March 31, 1905. fierial No. 258.011.

and State of New Jersey, have invented certain new and useful Improvements in. Reversing-Gear for Phonographs, of-Which the following is a specification.

My invention relates to means for reversing the diaphragm-carriages of phonographs;

- and it consists of electric carriage-retracting apparatus and automatic circuit closing and breaking devices, whereby instantaneous return of the carriage is effected with economy of time, as compared with the common return-screw device, as hereinafter described, reference being made to the accompanying drawings, in'which Figure 1 is a front elevation of my improved carriage-reversing device with some parts of the contact devices in vertical section and with dotted lines indicating some parts of the phonograph-base. Fig. 2 is a plan view with some parts of the phonograph in dotted lines and with part of the s eakercarrying arm of the phonograph in fu 1 lines. 3 is an end elevation of the reversing apparatus with a part of the contact apparatus in vertical section and with an end view of the phonograph-slideway for the speakercarrymg arm.

' So far as the honograph is concerned it is only necessary or the illustration of my invention to show in the drawings the part a of the. speaker-carrying arm with its attached shifter-arm b, dotted outlines of some of the phonograph parts, and the end view of the slideway c whereon said speaker-arm 11 moves -in the working of the phonograph.

The reversing. attachment comprises a solenoid-coil d, suitably mounted on a base 6 in front of the phonograph and parallel with the same, as indicated by the feed-screw f and cylinder 9 (dotted) of the phonograph, the core h of said coil being connected by a jointed hook i with the pin of a crank 7c, the

shaft of which, Z, is mounted in a block m,

which I attach to the under side of arm I) and which carries another crank m, this latter crank having a pin a, projecting from its free end and resting on the slideway c.

Slidably mounted in bearings at o and 1), located at the extremities, respectively, of the solenoid-coil, is a shifting rod g, which is coupled by clamps r s with a similar sliding rod 25 parallel with rod in the'same bearingsupports, said clamps each having a stop-lug a between which the extremity of arm I;- works for closing the solenoid-circuit and for resetting the shifting rod after each return of the speaker.

The circuit closing and breaking device consists of the terminals as and y of the wire w, pendent in. mercury-holding cups 2, communicating with each other and with an intermediate cylinder 3 through orifices 2 at their bases, said cylinder 3 containing a plung'er 4, which is normally held at the surface of the mercury or slightly above by a spring 5. The rod t carries an inclined piece 6 underneath it and in range of the head of rod 7 of the plunger, so that the higher part of the incline rides onto said rod when arm 12 reaches the lug u of clamp 8 just prior to the finish of the movement of the speaker to the right in the process of giving audible delivery of the record and by forcing down the plunger raises the mercury in cups 2 into contact with said terminals y, thus closing the circuit which instantly retracts the core h, which swings shaft 1 upward on pin a, as a fulcrum resting on slideway c, and lifts arm a through the instrumentality of block m, attached to arm andcarrying shaft 1, thus disengaging arm a from the phonograph feedscrewf and instantly pulling said arms a, and 7) back to the starting-point, where arm 1), coming in contact with lug u of clamp 1", shifts rods 9 and 25 back, relieving plunger-rod 7 from depression by the inclined piece 6 and allowing spring 5 to lift plunger 4 and break the contact. longer subject to the uplifting pull of the current on the core it causes the drop of arm a and reengagement with the feed-screw f The solenoid-core is by its connection with the phonographcarriage arm a, through hook t, crank k, and shaft Z, drawn out by said carriage-arm pre aratory to the retracting operation when t e carriage is operated by the feed-screw f; but it will be noticed that the power for retracting the carria e is supplied by-a separate battery '0, thus re ieving {{he phonograph-power of this part of the wor The arm b when the carriage reaches the end of the record contacts with and shifts the stop 8 Yu and with it the rod t and incline 6,

The weight then being no' so that the incline when shifted depresses the contact button or pin to close the circuit controlling the solenoid, &c. Astop 8 on red t limits the. out movement of the rods (1 t by contact with bearing-support 0, and another n'iatica -lly disengaging the phonograph-carriage from the feed-screw when the circuit closes, and means for antomaticall y reengage ing said arm and feed-screw when the circuit breaks. I

-2. The combination with a phonograph, of

a phonograph-carriage-retracting device comprislng a solenoid-actuator, means independent of the phonograph power' for energizing the solenoid, automatic circuit closing and breaking devices controlling the operation of said actuator, means for automatically disengaging the phonograph-carriage from the feed-screw when the circuit closes, and means for automatically reengaging said arm and feed-screw when the circuit breaks.

3. The combination with a phonograph, of a phonograph carriage retracting device comprising 'a solenoid-actuator, means for energizing the solenoid, automatic circuit closing and breaking devices controllingthe operations of the actuatorfsaid closing de vices consisting of the shifting rods,'-the extension-arm of the speaker-carrying arm actuating said rods at the end of the range of said arm, the incline on one of said shiftina rods, and. the plunger ol the mercury-contact device subject to said incline.

4-. The combination with a phonograph, of a phonographcarriage-retracting 1 evice comprising a solenoidacti.1ator, means for energizing the solenoid, automatic circuit closing and breaking devices controlling the operation of the actuator, and means for disengaging the phonograph-carriage from the iced-screw when the circuit closes, said in cans consisting of, the crank-shaft carried on the plnmograp]1-cariiage arm, with the pin of said crank coupled ,to' the solenoid-cine, and the second crgank bf saidfishaft with. its pin riding on the phonograph-slideway.'

5. The combination with the 1)l1(-)I10gl&1)ll, of a phonograph-carriage-retracting device comprising a solenoid-actuator, means for energizing the" solenoid, automatic circuit closing and breaking devices controlling the operation of the actuator, means for disen gaging the phonograph-carriage from the feed-screw when the circuit closes, and means for automatically reengaging 'said arm and feed-screw when the circuit breaks, said means consisting of the crank-shaft carried on the phonograpl'i-carriage arm. with the pin of said crank-shaft coupled to the solenoidcore, the second crank of said shaft riding on the phonograph-slideway and the gravitating arm of the plionograpl1earriage carrying said crankshaft.

Signed at New York this 29th day of March, 1905.

ARTHUR W. COLE.

Witnesses:

C. SEDGWIGK, J. M. HOWARD. 

